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MPLS: Update to support and use 64bit source id

This commit is contained in:
Ondrej Zajicek 2023-10-04 15:00:24 +02:00
parent cab5fce2b6
commit be09b030ed
3 changed files with 10 additions and 15 deletions
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4
nest/mpls.c
View File

@ -847,12 +847,12 @@ mpls_get_fec_by_label(struct mpls_fec_map *m, u32 label)
}
struct mpls_fec *
mpls_get_fec_by_net(struct mpls_fec_map *m, const net_addr *net, u32 path_id)
mpls_get_fec_by_net(struct mpls_fec_map *m, const net_addr *net, u64 path_id)
{
if (!m->net_hash.data)
HASH_INIT(m->net_hash, m->pool, 4);
u32 hash = net_hash(net) ^ u32_hash(path_id);
u32 hash = net_hash(net) ^ u64_hash(path_id);
struct mpls_fec *fec = HASH_FIND(m->net_hash, NET, net, path_id, hash);
if (fec)

12
nest/mpls.h
View File

@ -126,11 +126,6 @@ struct mpls_fec {
u32 label; /* Label for FEC */
u32 hash; /* Hash for primary key (net / rta) */
u32 uc; /* Number of LSPs for FEC */
union { /* Extension part of key */
u32 path_id; /* Source path_id */
u32 class_id; /* Aaggregation class */
};
u8 state; /* FEC state (MPLS_FEC_*) */
u8 policy; /* Label policy (MPLS_POLICY_*) */
@ -138,6 +133,11 @@ struct mpls_fec {
struct mpls_fec *next_k; /* Next in mpls_fec.net_hash/rta_hash */
struct mpls_fec *next_l; /* Next in mpls_fec.label_hash */
union { /* Extension part of key */
u64 path_id; /* Source path_id */
u32 class_id; /* Aaggregation class */
};
union { /* Primary key */
struct rta *rta;
struct iface *iface;
@ -169,7 +169,7 @@ void mpls_fec_map_reconfigure(struct mpls_fec_map *m, struct channel *C);
void mpls_fec_map_free(struct mpls_fec_map *m);
struct mpls_fec *mpls_find_fec_by_label(struct mpls_fec_map *x, u32 label);
struct mpls_fec *mpls_get_fec_by_label(struct mpls_fec_map *m, u32 label);
struct mpls_fec *mpls_get_fec_by_net(struct mpls_fec_map *m, const net_addr *net, u32 path_id);
struct mpls_fec *mpls_get_fec_by_net(struct mpls_fec_map *m, const net_addr *net, u64 path_id);
struct mpls_fec *mpls_get_fec_by_rta(struct mpls_fec_map *m, const rta *src, u32 class_id);
void mpls_free_fec(struct mpls_fec_map *x, struct mpls_fec *fec);
int mpls_handle_rte(struct mpls_fec_map *m, const net_addr *n, rte *r, linpool *lp, struct mpls_fec **locked_fec);

9
proto/l3vpn/l3vpn.c
View File

@ -148,11 +148,6 @@ l3vpn_prepare_export_targets(struct l3vpn_proto *p)
ASSERT(p->export_target_length == len);
}
/* Convert 64-bit RD to 32bit source ID, unfortunately it has collisions */
static inline struct rte_src * l3vpn_get_source(struct l3vpn_proto *p, u64 rd)
{ return rt_get_source(&p->p, (u32)(rd >> 32) ^ u32_hash(rd)); }
//{ return p->p.main_source; }
static void
l3vpn_rt_notify(struct proto *P, struct channel *c0, net *net, rte *new, rte *old UNUSED)
{
@ -182,14 +177,14 @@ l3vpn_rt_notify(struct proto *P, struct channel *c0, net *net, rte *new, rte *ol
case NET_VPN4:
net_fill_ip4(n, net4_prefix(n0), net4_pxlen(n0));
src = l3vpn_get_source(p, ((const net_addr_vpn4 *) n0)->rd);
src = rt_get_source(&p->p, ((const net_addr_vpn4 *) n0)->rd);
dst = p->ip4_channel;
export = 0;
break;
case NET_VPN6:
net_fill_ip6(n, net6_prefix(n0), net6_pxlen(n0));
src = l3vpn_get_source(p, ((const net_addr_vpn6 *) n0)->rd);
src = rt_get_source(&p->p, ((const net_addr_vpn6 *) n0)->rd);
dst = p->ip6_channel;
export = 0;
break;